How Oddly Measured chooses its defaults and sources

Every preset value, every source constant and every "typical" figure on this site went through the same small set of questions before it was allowed anywhere near a calculation. This is what those questions are.

Question one: does the user already know this better than we do?

The starting position for every calculator is that the person using it knows their own life better than any published average could. How many meetings they sit through, how often their dog destroys a toy, what their pet cost up front — these are things a person can genuinely estimate, so the calculators ask for them directly rather than substituting a demographic average in their place. This is a deliberate reversal of how a lot of "lifestyle calculator" content works elsewhere, where population averages quietly stand in for facts a visitor could have just been asked.

Question two: if not, does a reliable public figure exist?

Sometimes a calculator genuinely needs a value nobody can self-report — nobody knows off the top of their head how much cooked meat one chicken yields, or how much raw potato goes into a bag of crisps. For those, Oddly Measured looks for a value published by a body with a reason to have measured it accurately: government agencies like the USDA and FDA for food yields, World Athletics for race distances, the International Tennis Federation for ball mass. A value only qualifies as a source constant if it can be traced to a real publication, with a URL, a publisher, and the date it was checked — all of which appear onthe methodology page.

If a number can't be sourced this way, it doesn't get invented to fill the gap. That is why a calculator likeHow Many Times Have I Opened the Fridge?is explicit that its presets are convenient starting points, not measured averages — because no such average reliably exists, and claiming one would would be worse than just saying so.

Question three: is the assumption doing real work, or just decoration?

A comparison reference — the chicken, the pizza, the tennis ball — has to earn its place the same way a source constant does. Seewhy pizzas and chickens make big numbers make sensefor the specific rules a comparison has to satisfy before it's allowed into a result. The short version: it has to be true by definition, fixed by a governing body, or drawn from a source already used in the calculation. Nothing gets chosen purely because it makes a funnier sentence.

Question four: does this create a false sense of precision?

A number that looks statistically rigorous but isn't — a confidence percentage with no real statistical basis, an average with no cited sample — is worse than no number at all, because it borrows credibility it hasn't earned. Oddly Measured uses plain confidence language instead ("based mostly on your answers", "includes a few estimated values") and never a manufactured score. The full reasoning behind that choice is inhow to read an estimate without mistaking it for a measurement.

What happens when a source goes stale

Published figures get reviewed rather than left to rot. Every source constant carries a status — verified, due for review, deprecated or unresolved — and a calculator cannot be published while it depends on an unresolved one. If a review finds that a figure has changed or the underlying study has been superseded, the constant is updated and the calculators that use it inherit the correction automatically, because none of them hard-code the value themselves.